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TECHNICAL PAPERS: Heat Transfer in Manufacturing

Experimental Investigation of Heat Dispersion Due to Impregnation of Viscous Fluids in Heated Fibrous Porous During Composites Processing

[+] Author and Article Information
Kuang-Ting Hsiao, Hans Laudorn, Suresh G. Advani

Mechanical Engineering Department, University of Delaware, Newark, DE 19716

J. Heat Transfer 123(1), 178-187 (Jul 20, 2000) (10 pages) doi:10.1115/1.1338131 History: Received January 06, 1999; Revised July 20, 2000
Copyright © 2001 by ASME
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Figures

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Comparison of the experimental temperature histories of the uni-directional fiberglass roving; Experiments 1 (black lines): the fiber-roving orientated perpendicular to the flow direction. Experiment 2 (gray lines): the fiber-roving orientated along the flow direction. The thermocouples locate along the mid-plane of the mold cavity as shown in Fig. 1 and Fig. 2.
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Centerline temperature history for carbon biweave (Experiment 5) at the seven locations as shown in Fig. 1 and Fig. 2
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Kyy versus the Peclet number for the experiments using carbon biweave preform with fiber volume fraction of 43 percent
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The significance of heat dispersion for the steady state temperature predictions for four different Peclet numbers. The dependence of Kyy on Peclet number must be considered to match the experimental data from the carbon biweave cases.
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Kyy versus Peclet number for the experiments using the random fiberglass preform with fiber volume fraction of 22 percent.
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Experimental setup of the mold (photograph and schematic)
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Dimensions of the mold cavity and the locations of thermocouples
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The centerline temperature history at seven locations as shown in Fig. 1 and Fig. 2; random fiberglass, εS=22 percent,〈u〉x=0.826 cm/sec,Pe=dp〈u〉/2αf=6.28,Kyy=0.94 W/m⋅K=3.41kf

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